OCL are Essex-based, and the county is home territory. Our operational base in Basildon puts us at the centre of one of the most active construction markets in the South East, with deep knowledge of the local supply chain, planning environment and development landscape built over many years of delivery across the county.
Essex presents a unique combination of demands. A significant cladding remediation backlog on higher-risk residential buildings, major new housing growth areas in Chelmsford, Harlow and Brentwood, and an expanding commercial and logistics sector along the M25 and Thames Gateway corridor, all requiring facade contractors who can operate at scale, manage complex compliance requirements and deliver consistently to programme.
We understand the Essex market in a way that contractors parachuted in from elsewhere simply cannot. We know the key developers, main contractors and design teams working across the county. We understand the planning requirements of Essex County Council and its borough authorities. And we have the track record of delivery — on live occupied sites, on large multi-phase residential schemes and on technically complex remediation programmes to back it up.
That local knowledge, combined with our full in-house design, fabrication and installation capability, makes OCL the natural choice for facade works across Essex.

No county in England has a more pressing need for expert rainscreen cladding capability than Essex. The volume of higher-risk residential buildings requiring external wall remediation, particularly across Basildon, Harlow, Southend and the Thames Gateway, represents one of the most significant construction programmes the county has seen. Getting the specification right, the first time, is not optional.
OCL bring the technical depth and compliance rigour that remediation and new-build rainscreen projects in Essex demand. We specify and install across the full range of materials, Aluminium, Stone, Timber, Composite, Terracotta, Zinc, GRC and Brick Slip, with full fire performance assessments, cavity barrier coordination and building safety documentation as standard.
For new residential and commercial developments, we bring the same rigour, ensuring every system is specified to perform for the life of the building, not just to satisfy a planning condition.

Essex’s high-volume residential pipeline, from large strategic housing sites in Chelmsford and Brentwood to urban regeneration schemes in Harlow and Purfleet, demands structural solutions that combine speed of installation with consistent, inspectable quality.
Steel Framing Systems (SFS) are the answer for many of these schemes. Pre-fabricated off-site from cold-rolled, galvanised steel, SFS reduces wet trade activity, compresses programme durations and delivers a repeatable, quality-controlled substrate for insulation, external cladding and internal finishes. On multi-block residential schemes — where the same structural approach is repeated across dozens of units, the programme and cost efficiency gains are substantial.
Being Essex-based, OCL can respond rapidly to programme changes on local sites, a practical advantage that out-of-county contractors cannot always offer.

Render is one of the most widely used finishes across Essex’s housing stock, from the post-war estates of Harlow and Basildon to the new-build residential developments now transforming towns like Chelmsford, Brentwood and Colchester. Each context has its own requirements, and selecting the wrong system has long-term consequences for durability, maintenance and occupier satisfaction.
As approved applicators for systems from Alsecco, Envirowall, Sto and Weber, OCL provide specification advice grounded in practical knowledge of Essex’s building stock and exposure conditions. Whether the project is a large social housing refurbishment where cost efficiency and robustness are paramount, or a private residential scheme where finish quality and colour accuracy are the priority, we specify and apply the right system for the specific context, and stand behind the result.

OCL are approved installers for curtain walling systems from Aluprof, Metal Technologies, Reynaers, SAPA and Schueco.
Essex’s commercial and mixed-use development market is growing rapidly – Chelmsford’s expanding city centre, the emerging Purfleet-on-Thames quarter, and the business parks and logistics hubs along the M25 and A12 corridors all represent active opportunities for glazed facade solutions that combine energy performance with strong architectural presence.
As approved installers for curtain walling systems from Aluprof, Metal Technologies, Reynaers, SAPA and Schueco, OCL deliver the full range of glazed facade configurations across Essex’s commercial and higher-density residential sectors. Our proximity to sites across the county means faster response times, easier logistics management and the kind of hands-on site oversight that complex curtain walling installations require.

Aluminium Windows
OCL install aluminium window systems from Aluprof, Metal Technologies, Reynaers, SAPA and Schueco across Essex’s broad spectrum of residential and commercial projects. In high-volume housebuilding and large apartment schemes, where consistency, durability and value are the key procurement criteria — aluminium delivers on all fronts. Our Essex base means competitive lead times and tight coordination with main contractors managing active programmes across the county.
Aluminium Timber Composite Windows
For the growing premium residential sector in Essex, particularly in towns like Brentwood, Shenfield and the Epping Forest district, aluminium timber composite windows from Ideal Combi, Lieb, NorDan, Internorm, Uniform Architectural and Velfac offer a step up in thermal performance and visual quality. With U-values as low as 0.7 W/m²K and a warm internal aesthetic, these systems support the higher specification expectations of Essex’s expanding owner-occupier and private rental market.

As Essex’s residential and commercial developments become more architecturally ambitious – particularly across the Thames Gateway regeneration zone, Chelmsford city centre and the county’s expanding new communities, the demand for bespoke facade elements that go beyond the standard envelope is growing.
OCL design, fabricate and install architectural metalwork, balconies, balustrades, louvres, brise soleil and mesh facades, as an integrated part of our facade packages. Being based in Essex means we can be responsive throughout the project lifecycle, coordinating closely with site teams on live programmes and managing the detailed interface between primary and secondary facade elements with the precision these components require.